| DEAL NAME | MSAC 2007-HE4 |
| Closing Date | 3/29/2007 |
| |
| Initial Collateral Characteristics | |
| Principal Balance ($) | 710,319,852 |
| |
| Sellers | DO(50.50%),WMC(49.50%) |
| Servicers | CW(50.50%),SX(49.50%) |
| |
| Number of Loans | 3,631 |
| Avg Loan Balance ($) | 195,626 |
| |
| Fixed/Floating | |
| % FRM | 15.41 |
| % ARM | 84.59 |
| |
| %IO | 15.13 |
| Wtd Avg IO Term (months) | 74 |
| |
| Wtd Avg Current Mortgage Rate (%) | 8.057 |
| Non-Zero Wtd Avg Margin (%) | 6.619 |
| Non-Zero Wtd Avg Initial Cap (%) | 3.080 |
| Non-Zero Wtd Avg Periodic Cap (%) | 1.000 |
| |
| Lien Composition | |
| % 1st Lien | 96.12 |
| % 2nd Lien | 3.88 |
| |
| Non-Zero Wtd Avg FICO | 629 |
| % FICO below 600 (inc. N/A) | 27.90 |
| % FICO below 550 (inc. N/A) | 8.79 |
| |
| Wtd Avg Comb Orig LTV | 81.31 |
| % CLTV > 80 | 35.31 |
| % CLTV > 90 | 9.24 |
| % CLTV > 95 | 3.98 |
| |
| % Silent Seconds | 24.26 |
| CLTV incl. all simul. liens (%) | 88.93 |
| |
| Documentation Level | |
| % Full Documentation | 55.73 |
| % Stated Documentation | 41.36 |
| % Limited Documentation | 2.91 |
| |
| % Owner Occupied | 96.20 |
| |
| Loan Purpose | |
| % Cashout Refinance | 50.86 |
| % Purchase | 42.38 |
| % Rate Term Refinance | 6.76 |
| |
| State Concentration (Over 5%) | CA(30.09%),FL(11.67%),NJ(6.34%) |
| |
| % Prepay Penalty | 76.06 |
| |
| Wtd Avg Std Orig Term (months) | 359 |
| Wtd Avg Std Rem Term (months) | 355 |
| Wtd Average Loan Age (months) | 4 |
